21817566

素因数分解:

$2^1\times 3^3\times {\mathrm{404029}}^1$

素因数の和:404040

約数の個数: 16

約数和(自身を含む): 48483600

約数和(自身を除く): 26666034

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 404029, 808058, 1212087, 2424174, 3636261, 7272522, 10908783, 21817566]

約数ペア:

[(1, 21817566), (2, 10908783), (3, 7272522), (6, 3636261), (9, 2424174), (18, 1212087), (27, 808058), (54, 404029)]